Flue Gas Desulfurization
Desulfurization is a chemical process for the reduction of sulfur dioxides. Sulfur dioxide comes in the industry from the burning of fossil fuels such as coal. Mainly in thermal power plants.
Desulfurization processes
HASLER-Group in wet FGD process :
Bulk and powdery materials dosing
WEIGH BELT FEEDER GRAVIT
- Accuracy : ± 0,25%
- Modular length and belt width
- Easy maintenance and commissioning
GRAVIT
Powdery materials dosing
DOUBLE ROTARY WEIGH FEEDER
- Accuracy : ± 0,5%
- Material moisture < 1 %
- Particle size : < 1 mm
- Several diameters
- Easy maintenance and commissioning
- Complete tightness
- Material quantity measured over 270°
- Easily removable wear elements
- ABS system thanks to drive integrated torque limiter
- Rotation control
- High temperature version : up to 130°C continuously
TWIN ROTAWEIGH
Pre and post-absorber Agitators
LUMPP® mixer with LBS Impeller
Suspended limestone
- Role: suspension
- Impeller : LBS, 2 – 3 or 4 blades, turbines
- Sealing : N / A
- Material: Carbon steel ; inner foam rubber
- Chemscale: ~ 3,5
Gypsum tank
- Role : suspension
- Impeller : LBS, 2 – 3 or 4 blades, turbines Sealing : N/A
- Material : rubber coating ; carbon steel
- Chemscale : ~ 3,5
Suspended limestone
Agitation in the absorber
Limestone + gypsum mixing
- Role : homogeneization
- Impeller : LBS 3 blades
- Sealing : mecanical sealing
- Material : SS 1,4529
- Power density : 59,7 W/m3
- 3 – 5 side-entry mixers
SIDE ENTRY MIXERS
MODELIZATION CFD
Filtration
HORIZONTAL VACUUM BELT FILTER
- Filtration rate: 1,1 t / h / m² ± 0,1
- Filtration cycle time : 90s
- Filter cloth: polypropylene, 85 microns, mono –mono double layer
- Airflow: ~ 300 m3 / h / m2
HORIZONTAL VACUUM BELT FILTER FILTRES PHILIPPE